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<table border=0 cellspacing=0 cellpadding=0 width=100%><tr><td class=MenuSection valign=top><!--START_ND_MENU--><div class=MEntry><div class=MFile id=MSelected>Proj4js</div></div><div class=MEntry><div class=MFile><a href="proj4js-combined-js.html">Proj4js</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent1')">Index</a><div class=MGroupContent id=MGroupContent1><div class=MEntry><div class=MIndex><a href="../index/General.html">Everything</a></div></div><div class=MEntry><div class=MIndex><a href="../index/Classes.html">Classes</a></div></div><div class=MEntry><div class=MIndex><a href="../index/Functions.html">Functions</a></div></div><div class=MEntry><div class=MIndex><a href="../index/Properties.html">Properties</a></div></div></div></div></div><!--END_ND_MENU--></td>

<td class=ContentSection valign=top><div class=CClass id=MainTopic><div class=CTopic><h1 class=CTitle><a name="Proj4js"></a>Proj4js</h1><div class=CBody><p class=CParagraph>Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations.</p><p class=CParagraph>This library is a port of both the Proj.4 and GCTCP C libraries to JavaScript.&nbsp; Enabling these transformations in the browser allows geographic data stored in different projections to be combined in browser-based web mapping applications.</p><p class=CParagraph>Proj4js must have access to coordinate system initialization strings (which are the same as for PROJ.4 command line).&nbsp;  Thes can be included in your application using a &lt;script&gt; tag or Proj4js can load CS initialization strings from a local directory or a web service such as spatialreference.org.</p><p class=CParagraph>Similarly, Proj4js must have access to projection transform code.&nbsp;  These can be included individually using a &lt;script&gt; tag in your page, built into a custom build of Proj4js or loaded dynamically at run-time.&nbsp;  Using the -combined and -compressed versions of Proj4js includes all projection class code by default.</p><p class=CParagraph>Note that dynamic loading of defs and code happens ascynchrously, check the Proj.readyToUse flag before using the Proj object.&nbsp;  If the defs and code required by your application are loaded through script tags, dynamic loading is not required and the Proj object will be readyToUse on return from the constructor.</p><p class=CParagraph>All coordinates are handled as points which have a .x and a .y property which will be modified in place.</p><p class=CParagraph>Override Proj4js.reportError for output of alerts and warnings.</p><p class=CParagraph>See <a href="http://trac.osgeo.org/proj4js/wiki/UserGuide" class=LURL>http://trac.osgeo.org/proj4js/wiki/UserGuide</a> for full details.</p><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr><td class=SEntrySize><div class=SMain><div class=SEntry><a href="#Proj4js" >Proj4js</a></div></div></td><td class=SDescriptionSize><div class=SMain><div class=SDescription>Proj4js is a JavaScript library to transform point coordinates from one coordinate system to another, including datum transformations.</div></div></td></tr><tr><td><div class=SGroup><div class=SEntry><div class=SIndent1><a href="#Proj4js.Properties" >Properties</a></div></div></div></td><td><div class=SGroup><div class=SDescription><div class=SIndent1></div></div></div></td></tr><tr class=SMarked><td><div class=SProperty><div class=SEntry><div class=SIndent2><a href="#Proj4js.defaultDatum" >defaultDatum</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent2>The datum to use when no others a specified</div></div></div></td></tr><tr><td><div class=SGroup><div class=SEntry><div class=SIndent1><a href="#Proj4js.Functions" >Functions</a></div></div></div></td><td><div class=SGroup><div class=SDescription><div class=SIndent1></div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.transform(source,dest,point)" id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">transform(source, dest, point)</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Transform a point coordinate from one map projection to another. </div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.reportError" id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">reportError</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>An internal method to report errors back to user. </div></div></div></td></tr><tr><td><div class=SSection><div class=SEntry><a href="#Private_Methods" >Private Methods</a></div></div></td><td><div class=SSection><div class=SDescription>The following properties and methods are intended for internal use only.</div></div></td></tr><tr><td><div class=SGroup><div class=SEntry><div class=SIndent1><a href="#Functions_and_Properties" >Functions and Properties</a></div></div></div></td><td><div class=SGroup><div class=SDescription><div class=SIndent1></div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#extend" id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">extend</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Copy all properties of a source object to a destination object. </div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Class" id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">Class</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Base class used to construct all other classes. </div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#bind" id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">bind</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Bind a function to an object. </div></div></div></td></tr><tr><td><div class=SProperty><div class=SEntry><div class=SIndent2><a href="#defsLookupService" >defsLookupService</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent2>AJAX service to retreive projection definition parameters from</div></div></div></td></tr><tr class=SMarked><td><div class=SProperty><div class=SEntry><div class=SIndent2><a href="#libPath" >libPath</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent2>internal: http server path to library code.</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#getScriptLocation" id=link6 onMouseOver="ShowTip(event, 'tt6', 'link6')" onMouseOut="HideTip('tt6')">getScriptLocation</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Return the path to this script.</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#loadScript" id=link7 onMouseOver="ShowTip(event, 'tt7', 'link7')" onMouseOut="HideTip('tt7')">loadScript</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Load a JS file from a URL into a &lt;script&gt; tag in the page.</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#checkReadyState" id=link8 onMouseOver="ShowTip(event, 'tt8', 'link8')" onMouseOut="HideTip('tt8')">checkReadyState</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>IE workaround since there is no onerror handler. </div></div></div></td></tr><tr><td><div class=SClass><div class=SEntry><a href="#Proj4js.Proj" >Proj4js.Proj</a></div></div></td><td><div class=SClass><div class=SDescription>Proj objects provide transformation methods for point coordinates between geodetic latitude/longitude and a projected coordinate system. </div></div></td></tr><tr><td><div class=SGroup><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.Properties" >Properties</a></div></div></div></td><td><div class=SGroup><div class=SDescription><div class=SIndent1></div></div></div></td></tr><tr class=SMarked><td><div class=SProperty><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.readyToUse" >readyToUse</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent2>Flag to indicate if initialization is complete for this Proj object</div></div></div></td></tr><tr><td><div class=SProperty><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.title" >title</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent2>The title to describe the projection</div></div></div></td></tr><tr class=SMarked><td><div class=SProperty><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.projName" >projName</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent2>The projection class for this projection, e.g. </div></div></div></td></tr><tr><td><div class=SProperty><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.units" >units</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent2>The units of the projection. </div></div></div></td></tr><tr class=SMarked><td><div class=SProperty><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.datum" >datum</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent2>The datum specified for the projection</div></div></div></td></tr><tr><td><div class=SGroup><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.Functions" >Functions</a></div></div></div></td><td><div class=SGroup><div class=SDescription><div class=SIndent1></div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.initialize" id=link9 onMouseOver="ShowTip(event, 'tt9', 'link9')" onMouseOut="HideTip('tt9')">initialize</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Constructor for Proj4js.Proj objects</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.loadProjDefinition" id=link10 onMouseOver="ShowTip(event, 'tt10', 'link10')" onMouseOut="HideTip('tt10')">loadProjDefinition</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Loads the coordinate system initialization string if required. </div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.loadFromService" id=link11 onMouseOver="ShowTip(event, 'tt11', 'link11')" onMouseOut="HideTip('tt11')">loadFromService</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Creates the REST URL for loading the definition from a web service and loads it.</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.defsLoaded" id=link12 onMouseOver="ShowTip(event, 'tt12', 'link12')" onMouseOut="HideTip('tt12')">defsLoaded</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Continues the Proj object initilization once the def file is loaded</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.checkDefsLoaded" id=link13 onMouseOver="ShowTip(event, 'tt13', 'link13')" onMouseOut="HideTip('tt13')">checkDefsLoaded</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>This is the loadCheck method to see if the def object exists</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.defsFailed" id=link14 onMouseOver="ShowTip(event, 'tt14', 'link14')" onMouseOut="HideTip('tt14')">defsFailed</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Report an error in loading the defs file, but continue on using WGS84</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.loadProjCode" id=link15 onMouseOver="ShowTip(event, 'tt15', 'link15')" onMouseOut="HideTip('tt15')">loadProjCode</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Loads projection class code dynamically if required. </div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.loadProjCodeSuccess" id=link16 onMouseOver="ShowTip(event, 'tt16', 'link16')" onMouseOut="HideTip('tt16')">loadProjCodeSuccess</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Loads any proj dependencies or continue on to final initialization.</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.defsFailed" >defsFailed</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Report an error in loading the proj file. </div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.checkCodeLoaded" id=link17 onMouseOver="ShowTip(event, 'tt17', 'link17')" onMouseOut="HideTip('tt17')">checkCodeLoaded</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>This is the loadCheck method to see if the projection code is loaded</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.initTransforms" id=link18 onMouseOver="ShowTip(event, 'tt18', 'link18')" onMouseOut="HideTip('tt18')">initTransforms</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Finalize the initialization of the Proj object</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.parseDefs" id=link19 onMouseOver="ShowTip(event, 'tt19', 'link19')" onMouseOut="HideTip('tt19')">parseDefs</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Parses the PROJ.4 initialization string and sets the associated properties.</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent2><a href="#Proj4js.Proj.deriveConstants" id=link20 onMouseOver="ShowTip(event, 'tt20', 'link20')" onMouseOut="HideTip('tt20')">deriveConstants</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent2>Sets several derived constant values and initialization of datum and ellipse parameters.</div></div></div></td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>

<div class=CGroup><div class=CTopic><h3 class=CTitle><a name="Proj4js.Properties"></a>Properties</h3></div></div>

<div class=CProperty><div class=CTopic><h3 class=CTitle><a name="Proj4js.defaultDatum"></a>defaultDatum</h3><div class=CBody><p class=CParagraph>The datum to use when no others a specified</p></div></div></div>

<div class=CGroup><div class=CTopic><h3 class=CTitle><a name="Proj4js.Functions"></a>Functions</h3></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.transform(source,dest,point)"></a>transform(source, dest, point)</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>transform: function(</td><td class=PParameter nowrap>source,</td></tr><tr><td></td><td class=PParameter nowrap>dest,</td></tr><tr><td></td><td class=PParameter nowrap>point</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p class=CParagraph>Transform a point coordinate from one map projection to another.&nbsp;  This is really the only public method you should need to use.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>source</td><td class=CDLDescription>{Proj4js.Proj} source map projection for the transformation</td></tr><tr><td class=CDLEntry>dest</td><td class=CDLDescription>{Proj4js.Proj} destination map projection for the transformation</td></tr><tr><td class=CDLEntry>point</td><td class=CDLDescription>{Object} point to transform, may be geodetic (long, lat) or projected Cartesian (x,y), but should always have x,y properties.</td></tr></table></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.reportError"></a>reportError</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>reportError: function(</td><td class=PParameter nowrap>msg</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p class=CParagraph>An internal method to report errors back to user.&nbsp; Override this in applications to report error messages or throw exceptions.</p></div></div></div>

<div class=CSection><div class=CTopic><h2 class=CTitle><a name="Private_Methods"></a>Private Methods</h2><div class=CBody><p class=CParagraph>The following properties and methods are intended for internal use only.</p><p class=CParagraph>This is a minimal implementation of JavaScript inheritance methods so that Proj4js can be used as a stand-alone library.&nbsp; These are copies of the equivalent OpenLayers methods at v2.7</p><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr><td class=SEntrySize><div class=SGroup><div class=SEntry><a href="#Functions_and_Properties" >Functions and Properties</a></div></div></td><td class=SDescriptionSize><div class=SGroup><div class=SDescription></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#extend" id=link21 onMouseOver="ShowTip(event, 'tt3', 'link21')" onMouseOut="HideTip('tt3')">extend</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Copy all properties of a source object to a destination object. </div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Class" id=link22 onMouseOver="ShowTip(event, 'tt4', 'link22')" onMouseOut="HideTip('tt4')">Class</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Base class used to construct all other classes. </div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#bind" id=link23 onMouseOver="ShowTip(event, 'tt5', 'link23')" onMouseOut="HideTip('tt5')">bind</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Bind a function to an object. </div></div></div></td></tr><tr><td><div class=SProperty><div class=SEntry><div class=SIndent1><a href="#defsLookupService" >defsLookupService</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent1>AJAX service to retreive projection definition parameters from</div></div></div></td></tr><tr class=SMarked><td><div class=SProperty><div class=SEntry><div class=SIndent1><a href="#libPath" >libPath</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent1>internal: http server path to library code.</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#getScriptLocation" id=link24 onMouseOver="ShowTip(event, 'tt6', 'link24')" onMouseOut="HideTip('tt6')">getScriptLocation</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Return the path to this script.</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#loadScript" id=link25 onMouseOver="ShowTip(event, 'tt7', 'link25')" onMouseOut="HideTip('tt7')">loadScript</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Load a JS file from a URL into a &lt;script&gt; tag in the page.</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#checkReadyState" id=link26 onMouseOver="ShowTip(event, 'tt8', 'link26')" onMouseOut="HideTip('tt8')">checkReadyState</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>IE workaround since there is no onerror handler. </div></div></div></td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>

<div class=CGroup><div class=CTopic><h3 class=CTitle><a name="Functions_and_Properties"></a>Functions and Properties</h3></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="extend"></a>extend</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>extend: function(</td><td class=PParameter nowrap>destination,</td></tr><tr><td></td><td class=PParameter nowrap>source</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p class=CParagraph>Copy all properties of a source object to a destination object.&nbsp;  Modifies the passed in destination object.&nbsp;  Any properties on the source object that are set to undefined will not be (re)set on the destination object.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>destination</td><td class=CDLDescription>{Object} The object that will be modified</td></tr><tr><td class=CDLEntry>source</td><td class=CDLDescription>{Object} The object with properties to be set on the destination</td></tr></table><h4 class=CHeading>Returns</h4><p class=CParagraph>{Object} The destination object.</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Class"></a>Class</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>Class: function()</td></tr></table></blockquote><p class=CParagraph>Base class used to construct all other classes.&nbsp; Includes support for multiple inheritance.</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="bind"></a>bind</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>bind: function(</td><td class=PParameter nowrap>func,</td></tr><tr><td></td><td class=PParameter nowrap>object</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p class=CParagraph>Bind a function to an object.&nbsp;  Method to easily create closures with &lsquo;this&rsquo; altered.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>func</td><td class=CDLDescription>{Function} Input function.</td></tr><tr><td class=CDLEntry>object</td><td class=CDLDescription>{Object} The object to bind to the input function (as this).</td></tr></table><h4 class=CHeading>Returns</h4><p class=CParagraph>{Function} A closure with &lsquo;this&rsquo; set to the passed in object.</p></div></div></div>

<div class=CProperty><div class=CTopic><h3 class=CTitle><a name="defsLookupService"></a>defsLookupService</h3><div class=CBody><p class=CParagraph>AJAX service to retreive projection definition parameters from</p></div></div></div>

<div class=CProperty><div class=CTopic><h3 class=CTitle><a name="libPath"></a>libPath</h3><div class=CBody><p class=CParagraph>internal: http server path to library code.</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="getScriptLocation"></a>getScriptLocation</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>getScriptLocation: function ()</td></tr></table></blockquote><p class=CParagraph>Return the path to this script.</p><h4 class=CHeading>Returns</h4><p class=CParagraph>Path to this script</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="loadScript"></a>loadScript</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>loadScript: function(</td><td class=PParameter nowrap>url,</td></tr><tr><td></td><td class=PParameter nowrap>onload,</td></tr><tr><td></td><td class=PParameter nowrap>onfail,</td></tr><tr><td></td><td class=PParameter nowrap>loadCheck</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p class=CParagraph>Load a JS file from a URL into a &lt;script&gt; tag in the page.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>url</td><td class=CDLDescription>{String} The URL containing the script to load</td></tr><tr><td class=CDLEntry>onload</td><td class=CDLDescription>{Function} A method to be executed when the script loads successfully</td></tr><tr><td class=CDLEntry>onfail</td><td class=CDLDescription>{Function} A method to be executed when there is an error loading the script</td></tr><tr><td class=CDLEntry>loadCheck</td><td class=CDLDescription>{Function} A boolean method that checks to see if the script has loaded.&nbsp;  Typically this just checks for the existance of an object in the file just loaded.</td></tr></table></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="checkReadyState"></a>checkReadyState</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>checkReadyState: function()</td></tr></table></blockquote><p class=CParagraph>IE workaround since there is no onerror handler.&nbsp;  Calls the user defined loadCheck method to determine if the script is loaded.</p></div></div></div>

<div class=CClass><div class=CTopic><h2 class=CTitle><a name="Proj4js.Proj"></a>Proj4js.Proj</h2><div class=CBody><p class=CParagraph>Proj objects provide transformation methods for point coordinates between geodetic latitude/longitude and a projected coordinate system. once they have been initialized with a projection code.</p><p class=CParagraph>Initialization of Proj objects is with a projection code, usually EPSG codes, which is the key that will be used with the Proj4js.defs array.</p><p class=CParagraph>The code passed in will be stripped of colons and converted to uppercase to locate projection definition files.</p><p class=CParagraph>A projection object has properties for units and title strings.</p><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr><td class=SEntrySize><div class=SGroup><div class=SEntry><a href="#Proj4js.Proj.Properties" >Properties</a></div></div></td><td class=SDescriptionSize><div class=SGroup><div class=SDescription></div></div></td></tr><tr class=SMarked><td><div class=SProperty><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.readyToUse" >readyToUse</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent1>Flag to indicate if initialization is complete for this Proj object</div></div></div></td></tr><tr><td><div class=SProperty><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.title" >title</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent1>The title to describe the projection</div></div></div></td></tr><tr class=SMarked><td><div class=SProperty><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.projName" >projName</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent1>The projection class for this projection, e.g. </div></div></div></td></tr><tr><td><div class=SProperty><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.units" >units</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent1>The units of the projection. </div></div></div></td></tr><tr class=SMarked><td><div class=SProperty><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.datum" >datum</a></div></div></div></td><td><div class=SProperty><div class=SDescription><div class=SIndent1>The datum specified for the projection</div></div></div></td></tr><tr><td><div class=SGroup><div class=SEntry><a href="#Proj4js.Proj.Functions" >Functions</a></div></div></td><td><div class=SGroup><div class=SDescription></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.initialize" id=link27 onMouseOver="ShowTip(event, 'tt9', 'link27')" onMouseOut="HideTip('tt9')">initialize</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Constructor for Proj4js.Proj objects</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.loadProjDefinition" id=link28 onMouseOver="ShowTip(event, 'tt10', 'link28')" onMouseOut="HideTip('tt10')">loadProjDefinition</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Loads the coordinate system initialization string if required. </div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.loadFromService" id=link29 onMouseOver="ShowTip(event, 'tt11', 'link29')" onMouseOut="HideTip('tt11')">loadFromService</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Creates the REST URL for loading the definition from a web service and loads it.</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.defsLoaded" id=link30 onMouseOver="ShowTip(event, 'tt12', 'link30')" onMouseOut="HideTip('tt12')">defsLoaded</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Continues the Proj object initilization once the def file is loaded</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.checkDefsLoaded" id=link31 onMouseOver="ShowTip(event, 'tt13', 'link31')" onMouseOut="HideTip('tt13')">checkDefsLoaded</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>This is the loadCheck method to see if the def object exists</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.defsFailed" id=link32 onMouseOver="ShowTip(event, 'tt14', 'link32')" onMouseOut="HideTip('tt14')">defsFailed</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Report an error in loading the defs file, but continue on using WGS84</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.loadProjCode" id=link33 onMouseOver="ShowTip(event, 'tt15', 'link33')" onMouseOut="HideTip('tt15')">loadProjCode</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Loads projection class code dynamically if required. </div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.loadProjCodeSuccess" id=link34 onMouseOver="ShowTip(event, 'tt16', 'link34')" onMouseOut="HideTip('tt16')">loadProjCodeSuccess</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Loads any proj dependencies or continue on to final initialization.</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.defsFailed" >defsFailed</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Report an error in loading the proj file. </div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.checkCodeLoaded" id=link35 onMouseOver="ShowTip(event, 'tt17', 'link35')" onMouseOut="HideTip('tt17')">checkCodeLoaded</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>This is the loadCheck method to see if the projection code is loaded</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.initTransforms" id=link36 onMouseOver="ShowTip(event, 'tt18', 'link36')" onMouseOut="HideTip('tt18')">initTransforms</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Finalize the initialization of the Proj object</div></div></div></td></tr><tr><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.parseDefs" id=link37 onMouseOver="ShowTip(event, 'tt19', 'link37')" onMouseOut="HideTip('tt19')">parseDefs</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Parses the PROJ.4 initialization string and sets the associated properties.</div></div></div></td></tr><tr class=SMarked><td><div class=SFunction><div class=SEntry><div class=SIndent1><a href="#Proj4js.Proj.deriveConstants" id=link38 onMouseOver="ShowTip(event, 'tt20', 'link38')" onMouseOut="HideTip('tt20')">deriveConstants</a></div></div></div></td><td><div class=SFunction><div class=SDescription><div class=SIndent1>Sets several derived constant values and initialization of datum and ellipse parameters.</div></div></div></td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>

<div class=CGroup><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.Properties"></a>Properties</h3></div></div>

<div class=CProperty><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.readyToUse"></a>readyToUse</h3><div class=CBody><p class=CParagraph>Flag to indicate if initialization is complete for this Proj object</p></div></div></div>

<div class=CProperty><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.title"></a>title</h3><div class=CBody><p class=CParagraph>The title to describe the projection</p></div></div></div>

<div class=CProperty><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.projName"></a>projName</h3><div class=CBody><p class=CParagraph>The projection class for this projection, e.g. lcc (lambert conformal conic, or merc for mercator.&nbsp;  These are exactly equicvalent to their Proj4 counterparts.</p></div></div></div>

<div class=CProperty><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.units"></a>units</h3><div class=CBody><p class=CParagraph>The units of the projection.&nbsp;  Values include &lsquo;m&rsquo; and &lsquo;degrees&rsquo;</p></div></div></div>

<div class=CProperty><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.datum"></a>datum</h3><div class=CBody><p class=CParagraph>The datum specified for the projection</p></div></div></div>

<div class=CGroup><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.Functions"></a>Functions</h3></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.initialize"></a>initialize</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>initialize: function(</td><td class=PParameter nowrap>srsCode</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p class=CParagraph>Constructor for Proj4js.Proj objects</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>srsCode</td><td class=CDLDescription>a code for map projection definition parameters.&nbsp;  These are usually (but not always) EPSG codes.</td></tr></table></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.loadProjDefinition"></a>loadProjDefinition</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>loadProjDefinition: function()</td></tr></table></blockquote><p class=CParagraph>Loads the coordinate system initialization string if required.&nbsp; Note that dynamic loading happens asynchronously so an application must wait for the readyToUse property is set to true.&nbsp; To prevent dynamic loading, include the defs through a script tag in your application.</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.loadFromService"></a>loadFromService</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>loadFromService: function()</td></tr></table></blockquote><p class=CParagraph>Creates the REST URL for loading the definition from a web service and loads it.</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.defsLoaded"></a>defsLoaded</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>defsLoaded: function()</td></tr></table></blockquote><p class=CParagraph>Continues the Proj object initilization once the def file is loaded</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.checkDefsLoaded"></a>checkDefsLoaded</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>checkDefsLoaded: function()</td></tr></table></blockquote><p class=CParagraph>This is the loadCheck method to see if the def object exists</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.defsFailed"></a>defsFailed</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>defsFailed: function()</td></tr></table></blockquote><p class=CParagraph>Report an error in loading the defs file, but continue on using WGS84</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.loadProjCode"></a>loadProjCode</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>loadProjCode: function(</td><td class=PParameter nowrap>projName</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p class=CParagraph>Loads projection class code dynamically if required.&nbsp; Projection code may be included either through a script tag or in a built version of proj4js</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.loadProjCodeSuccess"></a>loadProjCodeSuccess</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>loadProjCodeSuccess: function(</td><td class=PParameter nowrap>projName</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p class=CParagraph>Loads any proj dependencies or continue on to final initialization.</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.defsFailed"></a>defsFailed</h3><div class=CBody><p class=CParagraph>Report an error in loading the proj file.&nbsp;  Initialization of the Proj object has failed and the readyToUse flag will never be set.</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.checkCodeLoaded"></a>checkCodeLoaded</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>checkCodeLoaded: function(</td><td class=PParameter nowrap>projName</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote><p class=CParagraph>This is the loadCheck method to see if the projection code is loaded</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.initTransforms"></a>initTransforms</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>initTransforms: function()</td></tr></table></blockquote><p class=CParagraph>Finalize the initialization of the Proj object</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.parseDefs"></a>parseDefs</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>parseDefs: function()</td></tr></table></blockquote><p class=CParagraph>Parses the PROJ.4 initialization string and sets the associated properties.</p></div></div></div>

<div class=CFunction><div class=CTopic><h3 class=CTitle><a name="Proj4js.Proj.deriveConstants"></a>deriveConstants</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>deriveConstants: function()</td></tr></table></blockquote><p class=CParagraph>Sets several derived constant values and initialization of datum and ellipse parameters.</p></div></div></div>

</td>

</tr></table><div class=Footer><!--START_ND_FOOTER-->Generated by <a href="http://www.naturaldocs.org">Natural Docs</a><!--END_ND_FOOTER--></div>
<!--START_ND_TOOLTIPS-->
<div class=CToolTip id="tt1"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>transform: function(</td><td class=PParameter nowrap>source,</td></tr><tr><td></td><td class=PParameter nowrap>dest,</td></tr><tr><td></td><td class=PParameter nowrap>point</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Transform a point coordinate from one map projection to another. </div></div><div class=CToolTip id="tt2"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>reportError: function(</td><td class=PParameter nowrap>msg</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>An internal method to report errors back to user. </div></div><div class=CToolTip id="tt3"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>extend: function(</td><td class=PParameter nowrap>destination,</td></tr><tr><td></td><td class=PParameter nowrap>source</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Copy all properties of a source object to a destination object. </div></div><div class=CToolTip id="tt4"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>Class: function()</td></tr></table></blockquote>Base class used to construct all other classes. </div></div><div class=CToolTip id="tt5"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>bind: function(</td><td class=PParameter nowrap>func,</td></tr><tr><td></td><td class=PParameter nowrap>object</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Bind a function to an object. </div></div><div class=CToolTip id="tt6"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>getScriptLocation: function ()</td></tr></table></blockquote>Return the path to this script.</div></div><div class=CToolTip id="tt7"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>loadScript: function(</td><td class=PParameter nowrap>url,</td></tr><tr><td></td><td class=PParameter nowrap>onload,</td></tr><tr><td></td><td class=PParameter nowrap>onfail,</td></tr><tr><td></td><td class=PParameter nowrap>loadCheck</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Load a JS file from a URL into a script tag in the page.</div></div><div class=CToolTip id="tt8"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>checkReadyState: function()</td></tr></table></blockquote>IE workaround since there is no onerror handler. </div></div><div class=CToolTip id="tt9"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>initialize: function(</td><td class=PParameter nowrap>srsCode</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Constructor for Proj4js.Proj objects</div></div><div class=CToolTip id="tt10"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>loadProjDefinition: function()</td></tr></table></blockquote>Loads the coordinate system initialization string if required. </div></div><div class=CToolTip id="tt11"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>loadFromService: function()</td></tr></table></blockquote>Creates the REST URL for loading the definition from a web service and loads it.</div></div><div class=CToolTip id="tt12"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>defsLoaded: function()</td></tr></table></blockquote>Continues the Proj object initilization once the def file is loaded</div></div><div class=CToolTip id="tt13"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>checkDefsLoaded: function()</td></tr></table></blockquote>This is the loadCheck method to see if the def object exists</div></div><div class=CToolTip id="tt14"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>defsFailed: function()</td></tr></table></blockquote>Report an error in loading the defs file, but continue on using WGS84</div></div><div class=CToolTip id="tt15"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>loadProjCode: function(</td><td class=PParameter nowrap>projName</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Loads projection class code dynamically if required. </div></div><div class=CToolTip id="tt16"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>loadProjCodeSuccess: function(</td><td class=PParameter nowrap>projName</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>Loads any proj dependencies or continue on to final initialization.</div></div><div class=CToolTip id="tt17"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class=PBeforeParameters nowrap>checkCodeLoaded: function(</td><td class=PParameter nowrap>projName</td><td class=PAfterParameters nowrap>)</td></tr></table></td></tr></table></blockquote>This is the loadCheck method to see if the projection code is loaded</div></div><div class=CToolTip id="tt18"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>initTransforms: function()</td></tr></table></blockquote>Finalize the initialization of the Proj object</div></div><div class=CToolTip id="tt19"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>parseDefs: function()</td></tr></table></blockquote>Parses the PROJ.4 initialization string and sets the associated properties.</div></div><div class=CToolTip id="tt20"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>deriveConstants: function()</td></tr></table></blockquote>Sets several derived constant values and initialization of datum and ellipse parameters.</div></div><!--END_ND_TOOLTIPS-->

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